My Bacula 9.0.8 installation aborted a job on an LTO-2 drive with a
pretty spectacular series of error messages, claiming a defective tape
and asking for a cleaning:
16-Jun 00:01 xenon-sd JobId 4680: User specified Device spool size
reached: DevSpoolSize=26,843,596,555 MaxDevSpoolSize=26,843,545,600
16-Jun 00:01 xenon-sd JobId 4680: Writing spooled data to Volume.
Despooling 26,843,596,555 bytes ...
16-Jun 00:14 xenon-sd JobId 4680: Error: block.c:293 Write error at
15:13078 on device "LTO-2" (/dev/nst0) Vol=Oktober-2. ERR=Input/output
error.
16-Jun 00:14 xenon-sd JobId 4680: Fatal error: Alert: Volume="Oktober-2"
alert=3: ERR=The operation has stopped because an error has occurred
while reading or writing data which the drive cannot correct. The drive
had a hard read or write error
16-Jun 00:14 xenon-sd JobId 4680: Fatal error: Alert: Volume="Oktober-2"
alert=4: ERR=Your data is at risk: Media cannot be written/read, or
media performance is severely degraded.
1. Copy any data you require from the tape.
2. Do not use this tape again.
3. Restart the operation with a different tape.
16-Jun 00:14 xenon-sd JobId 4680: Warning: Disabled Device "LTO-2"
(/dev/nst0) due to tape alert=20.
16-Jun 00:14 xenon-sd JobId 4680: Warning: Disabled Volume "Oktober-2"
due to tape alert=20.
16-Jun 00:14 xenon-sd JobId 4680: Fatal error: Alert: Volume="Oktober-2"
alert=20: ERR=The tape drive needs cleaning: The drive thinks it has a
head clog, or needs cleaning.
1. If the operation has stopped, eject the tape and clean the drive.
2. If the operation has not stopped, wait for it to finish and then
clean the drive.
Check the tape drive users manual for device specific cleaning
instructions.
16-Jun 00:14 xenon-sd JobId 4680: Fatal error: Error creating JobMedia
records: 1000 OK VolName=Oktober-2 VolJobs=1 VolFiles=15
VolBlocks=710607 VolBytes=45842743296 VolABytes=0 VolHoleBytes=0
VolHoles=0 VolMounts=5 VolErrors=2 VolWrites=1590516 MaxVolBytes=0
VolCapacityBytes=0 VolStatus=Disabled Slot=0 MaxVolJobs=0 MaxVolFiles=0
InChanger=1 VolReadTime=0 VolWriteTime=4283259819 EndFile=11
EndBlock=42620 VolType=2 LabelType=0 MediaId=56 ScratchPoolId=0
VolParts=0 VolCloudParts=0 LastPartBytes=0 Enabled=0
16-Jun 00:14 xenon-sd JobId 4680: Error: Error writing final EOF to
tape. Volume Oktober-2 may not be readable.
tape_dev.c:963 ioctl MTWEOF error on "LTO-2" (/dev/nst0).
ERR=Input/output error.
16-Jun 00:14 xenon-sd JobId 4680: Despooling elapsed time = 00:13:00,
Transfer rate = 34.41 M Bytes/second
16-Jun 00:14 xenon-sd JobId 4680: Elapsed time=01:48:56, Transfer
rate=16.41 M Bytes/second
16-Jun 00:14 xenon-sd JobId 4680: Fatal error: Alert: Volume="Oktober-2"
alert=3: ERR=The operation has stopped because an error has occurred
while reading or writing data which the drive cannot correct. The drive
had a hard read or write error
16-Jun 00:14 xenon-sd JobId 4680: Fatal error: Alert: Volume="Oktober-2"
alert=4: ERR=Your data is at risk: Media cannot be written/read, or
media performance is severely degraded.
1. Copy any data you require from the tape.
2. Do not use this tape again.
3. Restart the operation with a different tape.
16-Jun 00:14 xenon-sd JobId 4680: Warning: Disabled Device "LTO-2"
(/dev/nst0) due to tape alert=20.
16-Jun 00:14 xenon-fd JobId 4680: Error: bsock.c:661 Write error sending
65540 bytes to Storage daemon:xenon:9103: ERR=Connection reset by peer
16-Jun 00:14 xenon-fd JobId 4680: Fatal error: backup.c:843 Network send
error to SD. ERR=Connection reset by peer
16-Jun 00:14 xenon-fd JobId 4680: Error: bsock.c:549 Socket has errors=1
on call to Storage daemon:xenon:9103
16-Jun 00:14 xenon-dir JobId 4680: Error: bsock.c:661 Write error
sending 345 bytes to Storage daemon:xenon:9103: ERR=Connection reset by peer
As Bacula had not ejected the tape and was still blocking the drive, I
had to unmount the drive in bconsole in order to do the cleaning, which
was successful in clearing the cleaning indicator on the drive itself.
However when I try to mount the next tape, Bacula still considers the
device disabled:
*mo LTO-2
block.c:460 Cannot write block. Device is disabled. dev="LTO-2" (/dev/nst0)
3902 Cannot mount Volume on Storage Device ""LTO-2" (/dev/nst0)" because:
Read label block failed: requested Volume "" on Tape device "LTO-2"
(/dev/nst0) is not a Bacula labeled Volume, because: ERR=Cannot write
block. Device is disabled. dev="LTO-2" (/dev/nst0)
3905 Device ""LTO-2" (/dev/nst0)" open but no Bacula volume is mounted.
If this is not a blank tape, try unmounting and remounting the Volume.
How do I clear that condition?
I didn't find anything on that topic in the documentation, and Google
also turned up nothing on that message.
aTdHvAaNnKcSe
Tilman
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